Clethrionomys glareolus
TAXONOMY
Clethrionomys glareolus (Schreber, 1780), Denmark. At least 30 subspecies have been described, but the taxonomic status of many of these is uncertain.
OTHER COMMON NAMES
None known.
PHYSICAL CHARACTERISTICS
Head and body length 5–8 in (12.5–20 cm); weight 0.5–2 oz (15–50 g). Upperparts dark gray with reddish tint, underparts dark gray to white.
DISTRIBUTION
Western Europe, across Russia to north Asia.
HABITAT
Forest, scrub, parkland, gardens, and hedgerows.
BEHAVIOR
Both nocturnal and diurnal, living in burrows and climbing in low vegetation. Populations in the north of its range are cyclic, while southern ones are more stable.
FEEDING ECOLOGY AND DIET
Seeds, fruit, buds, bark, and insects.
REPRODUCTIVE BIOLOGY
Produces litters of 3–5 young following a gestation of 16–22 days. It will breed all year if conditions are favorable and tree seed is available.
CONSERVATION STATUS
Not threatened.
SIGNIFICANCE TO HUMANS
None known.




